Best DIY CNC Kits and Open-Source CNC Machines (October 2026)
DIY and open-source machines trade build time for money and flexibility. You learn exactly how the machine works, you can repair and upgrade everything, and the communities behind them are some of the best in hobby CNC.
Quick picks
V1 Engineering LowRider CNC V4
Score 74/100 · typical price $650
Check price at V1 Engineering
OpenBuilds LEAD 1010 CNC Router
Score 66/100 · typical price $900
Check price at OpenBuildsRanked by our overall score. Expect a weekend or more of assembly, and more for printed-part designs.
How we rank: by our own scores for value, rigidity, precision, ease of use and capability (methodology). Prices are read from the stores every night. Some links earn us a commission, for example from SainSmart, TwoTrees, VEVOR and Amazon. That never changes a score or the order of a list (disclosure).
The 8 best, ranked
typical price $1,200
- Work area 630 × 835 × 115 mm
- Spindle 2200W Example build option: 2.2 kW water-cooled spindle with matched...
- Weight 80 kg
- Frame Bolted steel tube (no welding)
Best for: Experienced builders willing to fabricate and tune a CNC to their own requirements
Why we like it
- Bolted steel-tube frame
- Can be configured for aluminum and some steel machining
- Fully open source — modify everything
Watch out for
- Full DIY fabrication, assembly, wiring and calibration
- Needs steel drilled and tapped (no welding)
from €6,935 at Mekanika, checked Oct 10
- Work area 630 × 1030 × 100 mm
- Spindle 2200W Optional 2.2kW air-cooled VFD spindle, ER20; not included in the...
- Weight 62 kg
- Frame 8mm steel plate frame with 30x60 and 60x60 aluminium profile, HGR20 prismatic rails and 16
Best for: European workshops wanting ball screws, profile rails and local technical support
Why we like it
- Built in Belgium with a five year warranty, which is unusual at any price
- HGR20 prismatic rails and 16mm C7 ball screws on all three axes
- Open source design, so you can see and modify what you bought
Watch out for
- Shipped as a kit, so expect a real assembly project
- PlanetCNC TNG requires learning its own setup and workflow
Full review and specs · Compare with V1 Engineering LowRider CNC V4
typical price $650
- Work area 1220 × 2440 × 50 mm
- Spindle 710W Makita 700-series trim router recommended, user supplied; laser,...
- Weight 18 kg
- Frame Printed parts and steel tubes of 29.5, 30 or 32mm OD; X/Y belts, dual Z lead screws and Z
Best for: Someone who wants full-sheet capacity on a small budget and treats building the machine as part of the project
Why we like it
- Full-sheet capacity is possible with a custom table and build
- Design files are available under a noncommercial share-alike license
- Machine can be removed from the table for storage
Watch out for
- Buy printed parts and hardware kits, or print and source them yourself
- Cut quality depends on build size, assembly, tooling and setup
Full review and specs · Compare with OpenBuilds LEAD 1010 CNC Router
typical price $900
- Work area 730 × 810 × 100 mm
- Spindle 710W Separate compact router with a matching mount; confirm clamp diameter
- Weight 20 kg
- Frame V-Slot/C-Beam aluminum extrusion, V-wheels and lead screws on all axes
Best for: Existing owners and DIY builders comfortable maintaining an open-design machine after the original vendor closed
Why we like it
- 730 x 810mm working area within an approximately 1m square footprint
- Open design with a history of community builds and modifications
- OpenBuilds CONTROL software is free and capable
Watch out for
- Router not included adds to total cost
- V-wheel motion system wears over time at this size
Full review and specs · Compare with OpenBuilds LEAD 1515 CNC Router
typical price $1,100
- Work area 1170 × 1250 × 90 mm
- Spindle Router or spindle selected separately with a matching mount
- Weight 30 kg
- Frame V-Slot aluminum extrusion with V-wheel guidance and tensioned lead-screw drives
Best for: Sign-makers and hobbyists who need an enormous work area for large panels and are comfortable with DIY improvements
Why we like it
- 1170 x 1250mm working area on a 1500mm square frame
- Open-source design allows extensive customization
- OpenBuilds CONTROL software is free and excellent
Watch out for
- The large frame needs a flat, supported base and careful assembly
- V-wheels need correct preload, clean running surfaces and periodic checks
Full review and specs · Compare with MPCNC Primo (Mostly Printed CNC)
typical price $233
- Work area 600 × 600 × 80 mm
- Spindle 660W Router purchased separately; V1 documentation recommends Makita...
- Weight 12 kg
- Frame 3D printed parts + EMT conduit/stainless steel tubing
Best for: DIY builders wanting a customizable small CNC and willing to assemble and tune it
Why we like it
- Extremely low cost with 3D printed parts
- Customizable work area size
- Active community and thorough documentation
Watch out for
- Print the plastic parts yourself or buy a printed-parts set
- Rigidity is limited by conduit tube frame
Full review and specs · Compare with Maslow 4.1 CNC Router Kit
from $525 at Maslow CNC, checked Oct 10
- Work area 1219 × 2438 × 50 mm
- Spindle 900W Not included: DeWalt DWP611 router (120 V) or DeWalt D26200 (230...
- Weight n/a
- Frame Sled resting on the workpiece, positioned by four motor-driven belts running to fixed anch
Best for: Tinkerers who want full-sheet cutting on a small budget and are prepared to build a frame, calibrate and troubleshoot
Why we like it
- Covers a full 4 x 8 ft sheet for a kit price far below gantry machines of that size
- 4.1 fixes known Maslow 4 weak points: JST connectors instead of ethernet cables, star-drive screws, larger belt guards and idler gear bearings
- Automatic calibration measures the anchor geometry, so the frame does not need precise dimensions
Watch out for
- Kit was sold out with a waitlist when checked, and Maslow has said a restock will take months
- Router, bits, anchors and a rigid frame or floor are extra
Full review and specs · Compare with Original Maslow CNC Router Kit (chain-driven)
typical price $439
- Work area 1220 × 2440 × 19 mm
- Spindle 900W Router not included; the original design commonly used the Ridgid...
- Weight 8 kg
- Frame Chain-suspended sled on a user-built upright frame
Best for: Woodworkers who need to cut full-size plywood sheets on a budget
Why we like it
- Cuts full 4x8 foot sheets of plywood
- Extremely low cost for the work area size
- Open-source hardware and firmware with an established support forum
Watch out for
- Very slow cutting speed
- Accuracy decreases at edges and corners of the work area
All 9 machines compared
| # | Machine | Price | Work area (mm) | Spindle | Overall | Value | Rigidity | Ease |
|---|---|---|---|---|---|---|---|---|
| 1 | PrintNC | $1,200 | 630×835 | 2200W | 84 | 95 | 92 | 15 |
| 2 | Mekanika Pro M | $7,490 | 630×1030 | 2200W | 83 | 56 | 86 | 66 |
| 3 | V1 Engineering LowRider CNC V4 | $650 | 1220×2440 | 710W | 74 | 96 | 38 | 30 |
| 4 | OpenBuilds LEAD 1010 CNC Router | $900 | 730×810 | 710W | 66 | 85 | 35 | 68 |
| 5 | OpenBuilds LEAD 1515 CNC Router | $1,100 | 1170×1250 | NoneW | 60 | 88 | 22 | 65 |
| 6 | MPCNC Primo (Mostly Printed CNC) | $233 | 600×600 | 660W | 56 | 92 | 28 | 25 |
| 7 | Maslow 4.1 CNC Router Kit | $525 | 1219×2438 | 900W | 55 | 95 | 15 | 45 |
| 8 | Original Maslow CNC Router Kit (chain-driven) | $439 | 1220×2440 | 900W | 52 | 95 | 15 | 35 |
| 9 | Sainsmart Genmitsu 3018-PRO | $149 | 300×180 | 60W | 45 | 84 | 20 | 60 |
Want to put two of these side by side? Use the compare tool or take the 6-question quiz.
Frequently asked questions
What is the best DIY CNC kit?
On our scores it is the PrintNC (84/100, typical price $1,200). Experienced builders willing to fabricate and tune a CNC to their own requirements.
Is building a CNC cheaper than buying one?
Usually for the same capability, yes, once you count the frame and motion parts. It is not cheaper if you value your time or need a working machine next week.
Which DIY CNC is best for a first build?
A well-documented kit with a big community, so every problem you hit has already been solved. The top picks on this list all have that.